公开(公告)号：US20230346103A1

公开(公告)日：2023-11-02

申请号：US17732036

申请日：2022-04-28

Applicant: L'Oreal

Inventor： Gregoire CHARRAUD ,  Casey BARBARINO ,  Rafael FELICIANO

IPC: A45D34/04 ,  A61N5/06

CPC classification number: A45D34/041 ,  A61N5/0616 ,  A45D2200/05 ,  A45D2200/055 ,  A61N2005/0658

Abstract: An applicator comprising a reservoir configured to hold a formula, a roller ball configured to apply the formula, a contact-less piston, configured to dispense the formula, and a piston magnet disposed underneath the contact-less piston, wherein the piston magnet is configured to move the piston in response to a magnetic field.